Can I throw out a completely, totally crazy thought? I wonder what the feasibilty is of a juicemaker growing their own tobacco in a climate-controlled greenhouse in an effort to provide 24/7/365 consistency in their tobacco extracts. I mean, how much area is required for plantings to produce enough extract to last a year? Just sayin'.
Actually, I think a lot. However, it would be awesome and give a whole new meaning to the acronym DIY. It could be done, but I'd imagine that juices would be pricey and not necessarily always available.